Home / 261,352.28-391,991.52-83,836.20

Finding the Fourth Proportional to 261,352.28, 391,991.52 and 83,836.20

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Solution

The fourth proportional to 261,352.28, 391,991.52 and 83,836.20 is: 125,742.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,352.28 : 391,991.52 = 83,836.20 : x
  2. Step 2: Convert to fraction form
    261,352.28/391,991.52 = 83,836.20/x
  3. Step 3: Cross multiply
    261,352.28x = 391,991.52 × 83,836.20
  4. Step 4: Simplify right side
    261,352.28x = 32,863,079,469.02
  5. Step 5: Solve for x
    x = 32,863,079,469.02/261,352.28
  6. Step 6: Final answer
    x = 125,742.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.